KR100760163B1 - Inspecting apparatus of liquid crystal display panel - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to liquid crystal display panel inspection equipment for inspecting lighting of a liquid crystal display panel. The liquid crystal display panel inspection equipment of the present invention includes a first stage portion on which the liquid crystal display panel is positioned, a second stage portion and a first stage portion symmetrically disposed on both sides about the first stage portion, and on which the liquid crystal display panel is positioned. And a carrier for simultaneously moving the liquid crystal display panel between the second stage part and moving the liquid crystal display panel between the first stage part and the third stage part. Since the liquid crystal display panel inspection equipment having the above-described configuration can transfer two liquid crystal display panels even with one panel carrier, continuous liquid crystal display panel inspection is possible.

LCD panel, carrier

Description

Liquid Crystal Display Panel Inspection Equipment {INSPECTING APPARATUS OF LIQUID CRYSTAL DISPLAY PANEL}

1 and 2 are a front view and a plan view schematically showing a liquid crystal display panel inspection equipment according to a first embodiment of the present invention.

3 and 4 are a perspective view and a plan view showing one embodiment of a panel carrier used in the inspection equipment shown in Figs.

5 to 8 are diagrams for describing an operation procedure of the liquid crystal display panel inspection equipment according to the first embodiment.

9 is a plan view of a panel carrier capable of transferring liquid crystal display panels of different sizes.

10 is a front view showing a modification of the liquid crystal display panel inspection equipment according to the present invention.

11 to 14 are diagrams for describing an operation procedure of the liquid crystal display panel inspection equipment illustrated in FIG. 9.

15 and 16 are views showing a modification of the panel carrier.

17 shows a panel carrier with one grip portion.

Explanation of symbols on the main parts of the drawings

102: supply unit

110: first stage part

120a: second stage

120b: third stage

140: panel carrier

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to inspection equipment for liquid crystal display panels, and more particularly, to liquid crystal display panel inspection equipment that performs lighting inspection of liquid crystal display panels.

In general, the liquid crystal display (TFT-LCD), which is the flagship product of flat panel displays, has rapidly progressed in size and high resolution due to mass production technology and achievements in research and development. It is also being developed as an application product and gradually replaces existing CRT (cathode ray tube) products, and its portion in the display industry is gradually increasing. In today's information society, displays are becoming more important as visual information transmission media, and in particular, the importance of low power consumption, thinness, light weight, high definition, and portability is increasing according to light, thin, short, and small trends of all electronic products. It is getting higher.

As liquid crystal displays are not only capable of satisfying these conditions of flat panel displays but also mass-produced displays, new products using them are rapidly being created. It is emerging as a next-generation flagship technology.

Such a liquid crystal display device performs a lighting test at the final stage of the manufacturing line, which is performed by using a probe unit in a specific inspection facility to inspect the disconnection of each data line and gate line of the liquid crystal display panel, color inspection, and visual inspection using a microscope. We carry out.

The existing inspection equipment includes a loading / unloading stage portion, an inspection stage portion, and two carriers for carrying the liquid crystal display panel for both of these stage portions. The conveyance of the liquid crystal display panel is carried out in parallel with the conveyance to the loading / unloading stage portion by one carrier and the conveyance stage portion by the other carrier. As such, the existing inspection equipment has a complicated structure because two carriers are used, and in particular, mutual control of two carriers is complicated.

The present invention has been made to solve the above problems, and an object thereof is to provide a liquid crystal display panel inspection equipment that can simplify the structure of the carrier. Another object of the present invention is to provide a liquid crystal display panel inspection equipment capable of coping with different sized liquid crystal display panels.

Liquid crystal display panel inspection equipment of the present invention for achieving the above object is a first stage unit in which the liquid crystal display panel is located; Second and third stage parts disposed symmetrically on both sides of the first stage part and in which a liquid crystal display panel is positioned; And a carrier for simultaneously moving the liquid crystal display panel between the first stage unit and the second stage unit, and moving the liquid crystal display panel between the first stage unit and the third stage unit.

According to an embodiment of the present invention, the first stage portion includes a sub table for loading / unloading the liquid crystal display panel and for aligning the loaded liquid crystal display panel, and the second and third stage portions include the first stage. An inspection table and a probe unit for inspecting the liquid crystal display panel transferred from the unit may be included.

According to an embodiment of the present invention, the second and third stage parts include a sub table for loading / unloading the liquid crystal display panel and for aligning the loaded liquid crystal display panel, wherein the first stage part includes the second stage. Or an inspection table and a probe unit for inspecting the liquid crystal display panel transferred from the third stage unit.

According to an embodiment of the present invention, the carrier comprises: a first grip portion for holding a liquid crystal display panel to transfer the liquid crystal display panel between the first and second stage portions; It may include a second grip portion for holding the liquid crystal display panel to transfer the liquid crystal display panel between the first and third stage.

According to an exemplary embodiment of the present invention, each of the first and second grip parts may include a pair of clamp arms having at least two grip means for holding the edge of the liquid crystal display panel.

According to an embodiment of the present invention, the carrier further includes a moving frame installed to be movable in the X-axis direction; The first and second grip parts may be symmetrically disposed on the moving frame.

According to an exemplary embodiment of the present invention, each of the first and second grip parts may include a pair of clamp arms provided on the moving frame in the X-axis direction and having at least two grip means for holding the edge of the liquid crystal display panel. Can be.

According to an embodiment of the present invention, the pair of clamp arms may be movable in the Y-axis direction on the moving frame according to the size of the liquid crystal display panel.

According to an embodiment of the present invention, the carrier includes a moving frame installed to be movable in the X-axis direction by the first driving means; A grip which is installed on both sides of the moving frame so as to be symmetrical with each other, and grips the liquid crystal display panel for transferring the liquid crystal display panel between the first stage part and the second stage part and between the first stage part and the third stage part; It may include a pair of clamp arms with means.

According to an embodiment of the present invention, the pair of clamp arms may be installed to be movable in the Y-axis direction on the moving frame.

For example, embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited by the embodiments described below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Accordingly, the shape of the elements in the drawings and the like are exaggerated to emphasize a clearer description.

An embodiment of the present invention will be described in detail with reference to FIGS. 1 to 17. In addition, in the drawings, the same reference numerals are denoted together for components that perform the same function.

1 and 2 are a front view and a plan view schematically showing a liquid crystal display panel inspection equipment according to a first embodiment of the present invention. 3 and 4 are a perspective view and a plan view showing one embodiment of a panel carrier used in the inspection equipment shown in Figs.

1 to 4, the liquid crystal display panel inspection apparatus 100 according to the present invention uses a probe unit to check the disconnection and color of each of the data lines and gate lines of an inspection object (hereinafter, referred to as a liquid crystal display panel) 10. This equipment performs visual inspection using a microscope.

The basic purpose of the present invention is to simplify the structure of a panel carrier for transporting a liquid crystal display panel. To achieve this, the inspection equipment of the present invention arranges three stage parts side by side, and between the first stage part and the second stage part. It is characterized by having a panel carrier provided on both sides, two grip parts which are responsible for panel conveyance and panel conveyance between the second stage portion and the third stage portion.

Hereinafter, in order to simplify the description and make it easier to understand, the left and right directions and the up and down directions in the plane parallel to the liquid crystal display panel 10 disposed in the inspection equipment are referred to as the X direction and the Y direction, and the liquid crystal display panel The direction perpendicular to (10) is called Z direction.

The liquid crystal display panel inspection equipment 100 of the present invention is a liquid crystal display panel disposed in front of the supply unit 102, the supply unit 102 for supplying the liquid crystal display panel 10, which is an object to be inspected, is provided from the supply unit 102. The first stage unit 110 to which the 10 is loaded / unloaded, and is positioned adjacent to both sides of the first stage unit 110, and receives the liquid crystal display panel through the first stage unit 110. Panel carrier 140 for transferring the liquid crystal display panel 10 between the second and third stage portions 120a and 120b and the first, second and third stage portions 110, 120a and 120b where the lighting inspection of the light source 10 is performed. ) Is provided.

The supply unit 102 is responsible for conveying the cassette table 105 in which the cassettes 104 in which the liquid crystal display panels 10 are housed, and the liquid crystal display panel 10 between the cassette 104 and the first stage unit 110. Carrier arm 106 and the like. First, second and third stage parts 110, 120a and 120b are disposed in front of the supply part 102.

The first stage unit 110 is disposed between the second and third stage units 120a and 120b, and the liquid crystal display panel 10 supplied from the transfer arm 106 is placed on the first stage unit 110. A well-known sub table 112 for aligning the liquid crystal display panel 10 is provided. The second and third stage parts 120a and 120b load the liquid crystal display panel 10 transferred from the first stage part 110 and illuminate the light source (backlight unit) provided at the rear to generate the liquid crystal display panel. Defects (10) and disconnection states and colors of the data lines and gate lines of the liquid crystal display panel 10 are examined. To this end, the second and third stage parts 120a and 120b have a known inspection table 122 on which the liquid crystal display panel 10 is placed, and one or more inspection tips connected to data terminals of the liquid crystal display panel 10. A known probe unit 124 is provided. The probe unit 124 is disposed on an opening (a rectangular opening larger than the liquid crystal display panel) formed in the front surface 101a of the main body. The test table 122 receives the liquid crystal display panel 10 in a state of inclination substantially parallel to the front surface 101a of the main body 101, and moves the liquid crystal display panel 10 with respect to the probe unit 124. . As described above, the test table 122 is configured to enable the chucking of the liquid crystal display panel 10 (also called a work table), a structure to be lit to illuminate behind the liquid crystal display panel 10 (backlight unit), and a liquid crystal display panel ( 10) has a known function such as a configuration (alignment unit) for moving in the X direction, the Y direction and the Z direction, and rotating at an angle around the Z axis for alignment.

On the other hand, the front surface 101a of the main body 101 checks an abnormal part of the liquid crystal display panel 10 loaded on the test table 122 in a minute, or at the initial stage of operation, the test tip and the liquid crystal display panel of the probe unit 124. Microscope unit 190 for pad alignment of the horizontal or vertical movement is installed.

The panel carrier 140, which is the most important component in the present invention, is installed in a size corresponding to two stage part regions, and is provided on both sides of the moving frame 144 and the moving frame 144, which are moved in the X-axis direction. The first and second grip parts 146a and 146b are installed symmetrically. The panel carrier 140 may be disposed inside the front surface 101a of the main body 101, and inside the front surface of the panel carrier 140, an X-axis rail 141 for moving the X-axis of the moving frame 142, and the moving frame 144. X-axis driving device 142 is provided that provides a driving force for the X-axis movement of the.

The first grip part 146a is a part which is responsible for the transfer of the liquid crystal display panel 10 between the first and second stage parts 110 and 120a. The first grip part 146a is provided with a pair of clamp arms 148 spaced apart from each other, and the arm ( And a grip unit 150 disposed inside the 148 to hold the edge of the liquid crystal display panel 10. The second grip part 146b is a part that is responsible for the transfer of the liquid crystal display panel 10 between the first and third stage parts 110 and 120b. The pair of clamp arms 148 is the same as the first grip part 146a. And a grip unit 150 provided inside the arm 148 to hold the edge of the liquid crystal display panel 10. The pair of clamp arms 148 are provided to be movable in the Y-axis direction on the moving frame 144. For the Y-axis movement of the clamp arm 148, the movement frame 144 generates a Y-axis rail 152 for guiding the Y-axis movement of the clamp arm 148, and a driving force for the movement of the clamp arm 148. Drive devices 154 to be included. The moving frame 144 is provided with four driving devices 154 to move the four clamp arms 148 disposed on the left and right sides in the Y-axis direction. The pair of clamp arms 148 grip the liquid crystal display panel 10 by adjusting distances at both ends.

As illustrated in FIG. 9, the panel carrier 140 may transport liquid crystal display panels having different sizes by adjusting the distance between both ends of the pair of clamp arms 148 according to the size of the liquid crystal display panel. That is, the first grip portion 146a carries the large size liquid crystal display panel 10a, and the second grip portion 146b carries the small size liquid crystal display panel 10b, and the second stage portion 120 The large size liquid crystal display panel 10a conveyed by the first grip part 146a is inspected, and the small size liquid crystal display panel 10b conveyed by the second grip part 146b in the third stage part 120b. You can check As such, the liquid crystal display panel inspection apparatus 100 of the present invention has a special effect capable of inspecting two kinds of liquid crystal display panels having different sizes.

5 to 8 are diagrams for describing an operation procedure of the liquid crystal display panel inspection equipment according to the first embodiment.

The operating status is as follows. The carrier arm 106 (shown in FIG. 2) of the operator or supply unit 102 picks up the liquid crystal display panel 10-1 aligned with the cassette 104 (shown in FIG. When placed on the subtable 112 of the stage unit 110, the subtable 112 horizontally aligns the liquid crystal display panel 10-1 to the correct position and is inclined at an inspection angle (for example, an inclination angle of 60 degrees). It is then moved upwards (loading step) (see FIG. 5). The liquid crystal display panel 10-1 on the inclined subtable 112 is gripped by the first grip part 146a of the panel carrier 140, and the liquid crystal display panel 10-is moved by the conveyance operation of the panel carrier 140. 1) is moved to the examination table 122 of the second stage part 120a which is arranged side by side next to the first stage part 110 (conveying step). While the lighting test of the liquid crystal display panel 10-1 is performed in the inspection table 122, the loading stage of the second liquid crystal display panel 10-2 is performed in the first stage unit 110. After the loading step, the second liquid crystal display panel 10-2 stands by in the grip state in the second grip part 146b of the panel carrier 140 (see FIG. 6). For example, the second liquid crystal display panel 10-2 may be moved directly to the third stage unit 120b to undergo a lighting test without waiting while the inspection of the first liquid crystal display panel 10-1 is in progress. . The liquid crystal display panel 10-1, which has been inspected by the second stage unit 120a, is moved to the first stage unit 110 by the conveying operation of the panel carrier 140, and is waiting in the second grip unit 146b. The liquid crystal display panel 10-2 is moved to the third stage part 120b and the lighting test is performed. In the first stage unit 110, the loading of the third liquid crystal display panel 10-3 is performed after the unloading of the inspected liquid crystal display panel 10-1 is performed. After the loading step, the third liquid crystal display panel 10-3 stands by in the grip state in the first grip part 146a of the panel carrier 140 (see FIG. 7). The liquid crystal display panel 10-2, which has been inspected by the third stage unit 120b, is moved to the first stage unit 110 by the conveying operation of the panel carrier 140, and is waiting in the first grip unit 146a. The liquid crystal display panel 10-3 is moved to the first stage unit 110 and the inspection is performed. In the first stage unit 110, the loading of the fourth LCD panel 10-4 is performed after the unloading of the inspected second LCD panel 10-2 is performed. After completing the loading step, the fourth liquid crystal display panel 10-4 stands by in the grip state in the second grip part 146b of the panel carrier 140 (see FIG. 8). For example, the lighting test may be a visual inspection by the naked eyes of an operator or an automatic test using a video camera (image processing apparatus).

(Variation)

10 to 14 are diagrams showing another example of the inspection stage.

10 is a front view showing a modification of the liquid crystal display panel inspection equipment according to the present invention. 11 to 14 are diagrams for describing an operation procedure of the LCD panel inspection apparatus illustrated in FIG. 10.

Referring to FIG. 10, the liquid crystal display panel inspecting apparatus 100 ′ according to a modification has the same configuration and function as the liquid crystal display panel inspecting apparatus 100 described above. However, in the present modified example, the liquid crystal display panel 10 includes one stage unit for performing lighting inspection and two stage units for loading / unloading the liquid crystal display panel to be inspected.

According to a modification of the present invention, two first stage parts 110a and 100b on which the liquid crystal display panel 10 as an object to be inspected is loaded / unloaded, and left / right first stage parts 110a and 110b. 1) which is positioned adjacent to each other and receives the liquid crystal display panel 10 from the first stage portion 110a on the left side or the first stage portion 110b on the right side, and performs lighting inspection of the liquid crystal display panel 10. A panel carrier 140 is provided for the transfer of the second stage unit 120a and the liquid crystal display panel 10 between the stage units 110a, 110b, and 120a, and the description thereof has been described in detail above. In the embodiment will be omitted.

11 to 14 are views for explaining the operation sequence in the liquid crystal display panel inspection equipment according to a modification of the present invention.

The operating status is as follows. When the carrier arm 106 of the operator or supply unit 102 picks up the liquid crystal display panel 10 aligned with the cassette 104 and puts it on the subtable 112 of the first stage unit 110a on the left side, The table 112 is horizontally aligned with the first liquid crystal display panel 10-1 in the correct position, and then tilted at an inspection angle (for example, an inclination angle of 60 degrees) and then moved upward (loading step) (see FIG. 11). ). The first liquid crystal display panel 10-1 on the inclined subtable 110 is gripped by the first grip part 146a of the panel carrier 140, and the liquid crystal display panel is transported by the panel carrier 140. 10-1 is moved to the examination table 122 of the second stage part 120a which is arranged next to the first stage part 110a on the left side (conveying step). While the lighting test for the first liquid crystal display panel 10-1 is performed in the inspection table 122, the loading stage of the second liquid crystal display panel 10-2 is performed in the first stage part 110b on the right side. Proceed. After the loading step, the second liquid crystal display panel 10-2 waits in the grip state in the second grip part 146b of the panel carrier 140 (see FIG. 12). The first liquid crystal display panel 10-1, which has been inspected by the second stage unit 120a, is moved to the first stage unit 110a on the left side by the conveyance operation of the panel carrier 140, and the second grip unit 146b. ), The second liquid crystal display panel 10-2, which is in the standby state, is moved to the second stage part 120a and the lighting test is performed. In the first stage unit 110a, the loading of the third LCD panel 10-3 is performed after the unloading of the first LCD panel 10-1 that has been inspected is performed. After the loading step, the third liquid crystal display panel 10-3 stands by in the grip state in the first grip part 146a of the panel carrier 140 (see FIG. 13). The second liquid crystal display panel 10-2, which has been inspected by the second stage unit 120a, is moved to the first stage unit 110b on the right side by the conveyance operation of the panel carrier 140, and the first grip unit 146a. ), The third liquid crystal display panel 10-3, which is in the standby state, is moved to the second stage part 120a and the inspection is performed. In the first stage part 110b on the right side, the loading of the fourth liquid crystal display panel 10-4 is performed after the unloading of the inspected second liquid crystal display panel 10-2 is performed. After completing the loading step, the fourth LCD panel 10-4 stands by in the grip state in the second grip part 146b of the panel carrier 40 (see FIG. 14).

15 and 16 are views showing a modification of the panel carrier.

As shown in FIGS. 15 and 16, the panel carrier 140a has a pair of X-axis rails 141 disposed inside the front surface 101a of the main body 101. The X-axis rails 141 are provided with first and second moving frames 144a and 144b that are independently moved along the X-axis rails 141. The first moving frame 144a is moved between the first and second stage parts 110 and 120a, and the second moving frame 144b is moved between the first and third stage parts 110 and 120b. The driving force for the X-axis movement of the first and second moving frames 144a and 144b is separately provided by the respective X-axis driving units 142a and 142b.

The first moving frame 144a is provided with a first grip part 146a on one side, and the second moving frame 144b is provided with a second grip part 146b on the other side. The first grip part 146a of the first moving frame 144a is a part that is responsible for the transfer of the liquid crystal display panel 10 between the first and second stage parts 110 and 120a. The pair of clamp arms are spaced apart from each other. 148 and grip means 150 provided inside the arm 148 to hold the edge of the liquid crystal display panel 10. The second grip part 146b of the second moving frame 144b is a part that is responsible for the transfer of the liquid crystal display panel 10 between the first and third stage parts 110 and 120b, similarly to the first grip part 146a. A pair of clamp arms 148 and grip means 150 provided inside the arm 148 to hold the edge of the liquid crystal display panel 10 are included.

On the other hand, the pair of clamp arms 148 provided in the first and second moving frames 144a and 144b are provided to be movable in the Y-axis direction. In order to move the Y-axis of the clamp arm 148, each of the moving frames 144a and 144b includes a Y-axis rail 152 that guides the Y-axis movement of the clamp arm 148 and a movement of the clamp arm 148. Drives 154 for generating a driving force for. Two driving devices 154 are provided in each of the first moving frame 144a and the second moving frame 144b to move the clamp arm 148 in the Y-axis direction. The pair of clamp arms 148 grip the liquid crystal display panel 10 by adjusting distances at both ends.

As such, the panel carrier 140a may independently perform the liquid crystal display panel transfer of the first and second stage units 110 and 120a and the liquid crystal display panel transfer of the first and third stage units 110 and 120b, respectively. Therefore, when the liquid crystal display panel 10 includes the second and third stage parts 120a and 120b for checking lighting on both sides of the first stage part 110 on which the liquid crystal display panel 10 is loaded / unloaded, the first grip part 146a Since the second grip part 146b continuously receives the liquid crystal display panel 10 from the first stage part 110, and supplies the second grip part 146b to the second and third stage parts 120a and 120b, the second and third stage parts ( Inspection of the liquid crystal display panel 10 may be performed at 120a and 120b at about the same time, thereby improving inspection yield and inspection progress speed. In particular, the visual inspection of the liquid crystal display panel 10 has an inspection time that varies according to the skill of the operator, and the inspection time of the second and third stage parts 120a and 120b is the liquid crystal display of the first stage part 110. Since it is longer than the loading / unloading time of the panel 10, the liquid crystal display panel transfer of the first and second stage units 110 and 120a and the liquid crystal display panel transfer of the first and third stage units 110 and 120b are performed independently. If a panel carrier 140a is provided, the inspection yield can be improved.

As shown in FIG. 17, the panel carrier 140b is installed in a size corresponding to one stage area and may have only one moving frame 144 moved along the X-axis rail 141. The moving frame 144 may include one first grip part 146a which is responsible for the transfer of the liquid crystal display panel between the first, second, and third stage parts 110, 120a, and 120b. The first grip portion 146a includes a pair of clamp arms 148 spaced apart from each other, and grip means 150 disposed inside the arms 148 to hold edges of the liquid crystal display panel 10. .

Meanwhile, the present invention may be variously modified and may take various forms in the liquid crystal display panel inspection equipment having the above configuration. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the above description, but rather includes all modifications, equivalents and substitutions within the spirit and scope of the invention as defined by the appended claims. It should be understood to do.

As described above, the liquid crystal display panel inspection equipment of the present invention can continuously inspect the liquid crystal display panel even with one panel carrier. As such, by using one panel carrier, parts related to the panel carrier can be simplified, and costs such as cost reduction can be obtained by simplifying such parts. In particular, the inspection equipment of the present invention has the advantage that two types of liquid crystal display panel inspection of different sizes are possible.

In addition, after supplying the panel from one supply unit to two inspection units, the inspection can be performed at the same time or at the same time in two inspection units. As a result, according to the present invention, there is an excellent effect of improving the yield and inspection progress speed of the liquid crystal display panel inspection.

Claims (10)

delete In liquid crystal display panel inspection equipment: A first stage unit for loading / unloading the liquid crystal display panel and including a sub table for aligning the loaded liquid crystal display panel; Second and third stage units disposed symmetrically on both sides of the first stage unit and including an inspection table and a probe unit for inspecting the liquid crystal display panel transferred from the first stage unit; A carrier installed to be movable above or below the first, second and third stage parts, the carrier being installed to a size corresponding to two stage areas of the first, second and third stage parts; And the carrier performs a liquid crystal display panel movement between the first stage portion and the second stage portion and a liquid crystal display panel movement between the first stage portion and the third stage portion. In liquid crystal display panel inspection equipment: A first stage unit including an inspection table and a probe unit for inspecting the liquid crystal display panel; Second and third stage parts disposed symmetrically on both sides of the first stage part and including a sub table for loading / unloading the liquid crystal display panel and aligning the loaded liquid crystal display panel; And A carrier installed to be movable above or below the first, second and third stage parts, the carrier being installed to a size corresponding to two stage areas of the first, second and third stage parts; And the carrier performs a liquid crystal display panel movement between the first stage portion and the second stage portion and a liquid crystal display panel movement between the first stage portion and the third stage portion. delete The method according to claim 2 or 3, The carrier A moving frame installed to be movable in the X-axis direction by the first driving means; A first grip part and a first stage part and the third stage, which are installed on both sides of the moving frame so as to be symmetrical to each other, and grip the liquid crystal display panel to transfer the liquid crystal display panel between the first stage part and the second stage part; And a pair of clamp arms having a second grip portion for gripping the liquid crystal display panel for transfer between the liquid crystal display panels. The method of claim 5, The carrier And the pair of clamp arms are movable in the Y-axis direction on the moving frame in accordance with the size of the liquid crystal display panel. The method of claim 5, And the carrier further comprises a Y-axis rail for guiding the Y-axis movement of the clamp arm on the moving frame, and a driving device for generating a driving force for the movement of the clamp arm. delete In liquid crystal display panel inspection equipment: A first stage portion and second and third stage portions positioned on both sides of the first stage portion and having carriers mounted on the same plane, respectively, wherein the carriers on the second and third stage portions are respectively formed in the first stage portion; And loading / unloading the liquid crystal display panel on the stage portion onto the respective second and third stage portions. The method of claim 9, Each of the carriers includes a moving frame movably mounted on a pair of rails spaced apart from each other, and a liquid crystal display panel on the first stage part, the second and third stages mounted on the moving frame. And a pair of clamp arms having grip means for gripping the liquid crystal display panel for loading / unloading with floating.

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